Arch-brick



W. SCHUTTLER.

ARCH BRICK. APPLICATION FlLED OCT. 2:. 1918 1,37 2,320. Pa en ed Mar. 22, 1921.

I? SHEETS-SHEET 1.

W. SCHUTTLER.

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arch constructions provided on one end with; a, surface adapted to take against :1 sale sheet and on the other end \Vlbll a subs-luntiully vertically extending: convex surface adapted to abut. against the adjacent structure and to permit swinging of the brick on a substantially vertical axis.

2. An end arch brick for boiler fire box arch constructions provided on one end with a surface adapted. to take against a side sheet and on the other end witlra rib azlapb ed to resli upon an udjecent' element and With a substantially vei' zicelly extending convex surface adapted to abut against the adjacent structure to permit swinging of the rick on ,e substantially vertical 3. An end arch brick for boiler fire box arch constructions provided on one end with a, surface adapted to take against a side sheet and on the other end with a rib ads p 2- ed to rest upon an adjacerit element and "with a substantially veiticalljv' extending convex surface adapted to abut against the adjacent structure to permit swinging of the brick on a substantially vertical axis. Elie end of said rib being rounded 0 permit; the brick to be swung on a subsainlially horizontal. axis.

42. A side or wing brick for locomotive fire box arches having at one end a suppering surface and a substantially vertically extending convex surface tberebelow, the supporting surface being adapted l0 rest upon and to support the brick from the adjacent structure and the convex surface being adapted to abut against the adjacenl structure and to permit ibe brick to swing on a substantially vertical axis.

5. In a locomotive fire be provided irirh circulation tubes and cencer bricks supported on said tubes, wing bricks, the outer ends of which take agzsinsi; the side sheets and he inner ends of which rest upon the ccnitcr bricks, each of said inner ends being pro .ur are :uluplml lo abul against whereby the wing I 151' ZluHYIllchb on a said ribs of illli", confer bricks whereby the wing may have swinging movement on e Jiia, Zical A brick icr a boiler lire. box arch mnslruction, adapiled to be supported at an end thereof. upon adjacent brick sli'uci'urc and having at said end a substantially vertically exleniling convex surface adapted to abut aguinsl the adjacenl brick sructure whereby saul brick nary have swinging movement on a eubsi'anliall vertical An end lH'iClC for boiler constructions adajg'l'eu', Lo be axis, fire box arcli supported lie-- tWe-en a. })-')i3l0l\ of {he lire box structure and the cent brick structure of the arch, said brick at one end being :Lllflliidll lo rcsl against lire iire be); slrui-liu'e and Hi con-- wit-ed at said end as to maintain llho brick, in a fixed horizontal angular relation with respect to ihe fire box structure againsll; which ii; reels, and said, brick at the olheii provided with a .-:ixl)sl:n1ti:illy verfiically din used convex surface- :ulapfeii :0 :alnrlz -imc the adjaceni li-ricli :ilIIlCL ire whereby .id bricl." ii r msunw ilili'e 'cnl boruaoi i resinous with respect to 

